From mboxrd@z Thu Jan 1 00:00:00 1970 From: piaojun Date: Thu, 7 Jun 2018 08:32:23 +0800 Subject: [Ocfs2-devel] [PATCH] ocfs2: return -EROFS when filesystem becomes read-only In-Reply-To: <16b958e3-0321-5d94-b8d0-6a6777e434b4@gmail.com> References: <5B173680.6050306@huawei.com> <16b958e3-0321-5d94-b8d0-6a6777e434b4@gmail.com> Message-ID: <5B187D17.8050501@huawei.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ocfs2-devel@oss.oracle.com Hi Joseph, Thanks for reviewing, and I will post patch v2 to fix alignment. Thanks, Jun On 2018/6/6 17:39, Joseph Qi wrote: > Looks reasonable. > But I suggest make the error messages alignment as well. > > Thanks, > Joseph > > On 18/6/6 09:18, piaojun wrote: >> We should return -EROFS rather than other errno if filesystem becomes >> read-only. >> >> Signed-off-by: Jun Piao >> Reviewed-by: Yiwen Jiang >> --- >> fs/ocfs2/alloc.c | 15 +++++---------- >> fs/ocfs2/localalloc.c | 3 +-- >> fs/ocfs2/quota_local.c | 7 +++---- >> 3 files changed, 9 insertions(+), 16 deletions(-) >> >> diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c >> index 0f157bb..453d39f 100644 >> --- a/fs/ocfs2/alloc.c >> +++ b/fs/ocfs2/alloc.c >> @@ -1481,19 +1481,17 @@ static int ocfs2_find_branch_target(struct ocfs2_extent_tree *et, >> >> while(le16_to_cpu(el->l_tree_depth) > 1) { >> if (le16_to_cpu(el->l_next_free_rec) == 0) { >> - ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci), >> + status = ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci), >> "Owner %llu has empty extent list (next_free_rec == 0)\n", >> (unsigned long long)ocfs2_metadata_cache_owner(et->et_ci)); >> - status = -EIO; >> goto bail; >> } >> i = le16_to_cpu(el->l_next_free_rec) - 1; >> blkno = le64_to_cpu(el->l_recs[i].e_blkno); >> if (!blkno) { >> - ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci), >> + status = ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci), >> "Owner %llu has extent list where extent # %d has no physical block start\n", >> (unsigned long long)ocfs2_metadata_cache_owner(et->et_ci), i); >> - status = -EIO; >> goto bail; >> } >> >> @@ -3214,8 +3212,7 @@ static int ocfs2_rotate_tree_left(handle_t *handle, >> goto rightmost_no_delete; >> >> if (le16_to_cpu(el->l_next_free_rec) == 0) { >> - ret = -EIO; >> - ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci), >> + ret = ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci), >> "Owner %llu has empty extent block at %llu\n", >> (unsigned long long)ocfs2_metadata_cache_owner(et->et_ci), >> (unsigned long long)le64_to_cpu(eb->h_blkno)); >> @@ -4411,12 +4408,11 @@ static int ocfs2_figure_merge_contig_type(struct ocfs2_extent_tree *et, >> le16_to_cpu(new_el->l_count)) { >> bh = path_leaf_bh(left_path); >> eb = (struct ocfs2_extent_block *)bh->b_data; >> - ocfs2_error(sb, >> + status = ocfs2_error(sb, >> "Extent block #%llu has an invalid l_next_free_rec of %d. It should have matched the l_count of %d\n", >> (unsigned long long)le64_to_cpu(eb->h_blkno), >> le16_to_cpu(new_el->l_next_free_rec), >> le16_to_cpu(new_el->l_count)); >> - status = -EINVAL; >> goto free_left_path; >> } >> rec = &new_el->l_recs[ >> @@ -4466,11 +4462,10 @@ static int ocfs2_figure_merge_contig_type(struct ocfs2_extent_tree *et, >> if (le16_to_cpu(new_el->l_next_free_rec) <= 1) { >> bh = path_leaf_bh(right_path); >> eb = (struct ocfs2_extent_block *)bh->b_data; >> - ocfs2_error(sb, >> + status = ocfs2_error(sb, >> "Extent block #%llu has an invalid l_next_free_rec of %d\n", >> (unsigned long long)le64_to_cpu(eb->h_blkno), >> le16_to_cpu(new_el->l_next_free_rec)); >> - status = -EINVAL; >> goto free_right_path; >> } >> rec = &new_el->l_recs[1]; >> diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c >> index fe0d1f9..222a3d1 100644 >> --- a/fs/ocfs2/localalloc.c >> +++ b/fs/ocfs2/localalloc.c >> @@ -663,11 +663,10 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb, >> #ifdef CONFIG_OCFS2_DEBUG_FS >> if (le32_to_cpu(alloc->id1.bitmap1.i_used) != >> ocfs2_local_alloc_count_bits(alloc)) { >> - ocfs2_error(osb->sb, "local alloc inode %llu says it has %u used bits, but a count shows %u\n", >> + status = ocfs2_error(osb->sb, "local alloc inode %llu says it has %u used bits, but a count shows %u\n", >> (unsigned long long)le64_to_cpu(alloc->i_blkno), >> le32_to_cpu(alloc->id1.bitmap1.i_used), >> ocfs2_local_alloc_count_bits(alloc)); >> - status = -EIO; >> goto bail; >> } >> #endif >> diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c >> index 16c42ed..d56cec1 100644 >> --- a/fs/ocfs2/quota_local.c >> +++ b/fs/ocfs2/quota_local.c >> @@ -137,14 +137,13 @@ static int ocfs2_read_quota_block(struct inode *inode, u64 v_block, >> int rc = 0; >> struct buffer_head *tmp = *bh; >> >> - if (i_size_read(inode) >> inode->i_sb->s_blocksize_bits <= v_block) { >> - ocfs2_error(inode->i_sb, >> + if (i_size_read(inode) >> inode->i_sb->s_blocksize_bits <= v_block) >> + return ocfs2_error(inode->i_sb, >> "Quota file %llu is probably corrupted! Requested to read block %Lu but file has size only %Lu\n", >> (unsigned long long)OCFS2_I(inode)->ip_blkno, >> (unsigned long long)v_block, >> (unsigned long long)i_size_read(inode)); >> - return -EIO; >> - } >> + >> rc = ocfs2_read_virt_blocks(inode, v_block, 1, &tmp, 0, >> ocfs2_validate_quota_block); >> if (rc) >> > . >